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11 December, 11:44

For which equation does it make the most sense to solve by completing the square?

A) 5x² + 3x = 9

B) x² + 20x = 52

C) x^2-8=1

D) 3x^2-x+17=0

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  1. 11 December, 15:00
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    Completing the square is a method used to solve a quadratic equation by changing the shape of the equation so that the left side is a perfect square trinomial.

    The following equation makes more sense to solve it complete squares:

    x² + 20x = 52

    We have then:

    x² + 20x + (10) ^ 2 = 52 + 100

    (x + 10) ² = 152

    Answer:

    The most sense to solve by completing the square is for:

    B) x² + 20x = 52
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